Workaround broken std::source_location in Clang 15

llvm/llvm-project#48230
hasselmm · Dec 20, 2023 · fcd3444 · fcd3444
1 parent 7edfeef
commit fcd3444
Showing 1 changed file with 10 additions and 5 deletions.
diff --git a/mproperty.h b/mproperty.h
@@ -6,10 +6,15 @@
 
 #include <utility>
 
+#if defined(Q_CC_CLANG) && Q_CC_CLANG < 1600
+#define CURRENT_LINE_NUMBER() __builtin_LINE()
+#else
+#define CURRENT_LINE_NUMBER() std::source_location::current().line()
+#endif
+
 namespace mproperty {
 namespace Private {
 
-
 } // namespace Private
 
 enum class Feature
@@ -454,10 +459,9 @@ class Object : public BaseObjectType
     }
 
 protected:
-    static consteval std::size_t n(const std::source_location &source =
-                                   std::source_location::current())
+    static constexpr std::size_t n(std::size_t l = CURRENT_LINE_NUMBER()) noexcept
     {
-        return source.line();
+        return l;
     }
 };
 
@@ -467,7 +471,8 @@ class Object : public BaseObjectType
                                                                                 \
 public:                                                                         \
     static const MetaObject staticMetaObject;                                   \
-    int qt_metacall(QMetaObject::Call call, int offset, void **args) override;
+    int qt_metacall(QMetaObject::Call call, int offset, void **args) override;  \
+    static_assert(n() == __LINE__);
 
 #define M_OBJECT_IMPLEMENTATION(ClassName, ...)                                 \
                                                                                 \